当x=5,y=3时,求代数式2x-3y/3x+2y的值
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当x=5,y=3时,求代数式2x-3y/3x+2y的值
当x=5,y=3时,求代数式2x-3y/3x+2y的值
当x=5,y=3时,求代数式2x-3y/3x+2y的值
2x-3y/3x+2y
=2*5-3*3/(3*5)+2*3
=10-0.6+6
=15.4
(2x-3y)/(3x+2y)
=1/21
2*5-3*3/3*5+2*3
=10-3/5+6
=15.4
15.4